div {
    height: 800px;
    margin-bottom: 50px;
    border: 1px solid red;
}

h2 {
    text-align: center;
}

table {
    margin: 10px auto;
    border-collapse: collapse;
    height: 250px;
    width: 250px;
}

td {
    border: 1px solid blue;
}

#loginNumber {
    border-radius: 5px;
    border: 2px solid blue;
    font-size: 20px;
    position: fixed;
    width: 150px;
    left: 20px;
    text-align: center;
}